I Had Stents Put In Back In Feb..I Have One

I had stents put in back in Feb..I have one surviving artery..last few months have been difficult. The other two arteries are blocked fairly close to the the heart in an inopportune location. The Surgeon had to be very good to guide the wires as well as he did, negotiating difficult angles. The cardiologist that I was recently sent to told me that bypass was never an option. Am I living a very uncertain future here?